KARCHER HD 7-11-4 M Cold Water High-Pressure Cleaner Instruction Manual

June 5, 2024
Karcher

HD 7-11-4 M Cold Water High-Pressure Cleaner
Instruction Manual

KARCHER HD 7 11 4 M Cold Water High Pressure Cleaner

KARCHER HD 7 11 4 M Cold Water High Pressure Cleaner -
overview

KARCHER HD 7 11 4 M Cold Water High Pressure Cleaner - overview
2

Please read and comply with these original instructions prior to the initial operation of your appliance and store them for later use or subsequent owners.

Device elements

Please unfold the front picture side

1 Storage compartment for nozzles 15 Marking of the nozzle
2 Handle 16 Spray lance
3 High-pressure connection 17 Hand blowing gun
4 Pressure/ quantity regulation 18 Safety lever
5 Water connection 19 Lever for hand spray gun
6 Manometer 20 High-pressure hose
7 Oil level indicator 21 Push handle
8 Oil tank 22 Cable clamp
9 Cover 23 Dosage valve for detergent
10 Power switch 24 Detergent suction hose with filter and screw-on lid
11 Fastening screw for device hood 25 Bottle holder for detergent
12 Storage compartment for hoses 26 Crank
13 Trigger gun storage clip 27 Hose drum
14 Nozzle

For Your Safety

Before first start-up, it is definitely necessary to read the operating instructions and safety indications Nr. 5.951-949!
Symbols in the operating instructions

Danger
The immediate danger can cause severe injury or even death.
Warning
A possible hazardous situation that could lead to severe injury or even death.
Caution
A possible hazardous situation that could lead to mild injury to persons or damage to property.

Symbols on the machine
High-pressure jets can be dangerous if improperly used. The jet may not be directed at persons, animals, live electrical equipment, or at the appliance itself.
According to the applicable regulations, the appliance must never be used on the drinking water supply without a system separator. Use a suitable system separator manufactured by KÄRCHER; or, as an alternative, a system separator as per EN 12729 Type BA. Water flowing through a system separator is considered non-drinkable.
Caution
Always connect the system separator to the water supply, never directly to the appliance!

Safety instructions

  • Please follow the national rules and regulations for fuel spray jets of the respective country.
  • Please follow the national rules and regulations for accident prevention in the respective country. Fuel spray jets must be tested regularly and the results of these tests must be documented in writing.

Proper use

Use this high-pressure cleaner exclusively for

  • Cleaning using low-pressure jet and detergent (e.g. for cleaning machines, cars, buildings, tools),
  • For cleaning use a high-pressure jet without detergent (e.g. for cleaning facades, terraces, garden appliances).

For stubborn dirt, we recommend the use of the dirt blaster as a special accessory. HD…Plus includes a dirt remover as part of standard delivery.

Safety Devices

Safety devices serve for the protection of the user and must not be put out of operation or bypassed with respect to their function.
Overflow valve with pressure switch
While reducing the water supply/quantity regulation at the pump head, the overflow valve opens and part of the water flows back to the pump suck side.
If the lever on the trigger gun is released the pressure switch turns off the pump, and the high-pressure jet is stopped. If the lever is pulled the pump is turned on again.
When the maximum operating overpressure is exceeded, the overflow valve opens and the water flows back to the pump inlet. The overflow valve and pressure switch are set and sealed at the factory. Setting only by customer service.

Environmental protection

| The packaging material can be recycled. Please do not place the packaging in the ordinary refuse for disposal, but arrange for the proper recycling.
---|---
| Old appliances contain valuable materials that can be recycled. Please arrange for the proper recycling of old appliances. Batteries, oil, and similar substances must not enter the environment. Please dispose of your old appliances using appropriate collection systems.

Before Startup

Unpacking

  • Check the contents of the pack before unpacking.
  • In case of transport, damage inform vendor immediately

Check oil level

  • Read the oil level display when the device is not running. The oil level must be above the two-pointers.

Activate deaeration of oil container

  • Unscrew the fastening screws of the device hood; remove the device hood.
  • Cut off the tip of the oil container cover
  • Fasten the device hood.

Attaching the Accessories

  • Mount the nozzle on the spray pipe (markings on the adjustment ring at the top).
  • Install spray pipe on the hand-spray gun.

In devices without hose drum:

  • Fasten the high-pressure hose to the high-pressure connection.

In devices without hose drum:

  • Insert the crank in the hose drum shaft and lock it in.
  • Before rolling up, stretch out the high-pressure hose.
  • Wind the high-pressure hose in uniform layers on the hose drum by rotating the crank. Select the rotation direction in such a way that the high-pressure hose does not get bent.

Startup

Electrical connection
Danger
The danger of injury by electric shock.
The appliance may only be connected to an alternating current.
The appliance may only be connected to an electrical supply that has been installed in accordance with IEC 60364.
The voltage indicated on the type plate must correspond to the voltage of the electrical source.
The minimum fuse rating required at the socket outlet is (see technical specifications).
The highest allowed net impedance at the electrical connection point (refer to technical data) is not to be exceeded. In case of confusion regarding the power impedance present on your connection, please contact your utility provider.
The appliance should always be connected to the electrical mains using a plug. It is forbidden to permanently connect the appliance to the power supply. The plug is only for mains separation.
Check the power cord with the main plug for damage before every use. If the power cord is damaged, please arrange immediately for the exchange by an authorized custom- er service or a skilled electrician.
The plug and coupling of the extension cable used must be watertight.
Use the extension cord that has an adequate cross-section (see “Technical Data”) and unwind it fully from the cable drum.
Unsuitable extension cables can be hazardous. Only use extension cables out- doors which have been approved for this purpose and labeled with a sufficient cable cross-section:
For connection values, see type plate/technical data.

Water connection
Connection to the water supply
Warning

Observe the regulations of water suppliers. According to the applicable regulations, the appliance must never be used on the drinking water supply without a system separator. Use a suitable system separator manufactured by KÄRCHER; or, as an alternative, a system separator as per EN 12729 Type BA. Water flowing through a system separator is considered non-drinkable.

Caution
Always connect the system separator to the water supply, never directly to the appliance! For connection, values refer to technical specifications

  • Connect the supply hose (minimum length 7.5 m, minimum diameter 1“) to the water connection point of the appliance (such as the tap).

Note
The supply hose is not included.

  • Open the water supply.

Drawing in water from open reservoirs

  • Screw the suction hose (order no.4.440-270.0) onto the water connection.
  • Connect filter (order-no. 4.730-012.0) to suction hose.
  • Deaerate the appliance:

Unscrew the nozzle.
Switch on the appliance and let it run until the water exiting is bubble-free.
At the end let the appliance run for approx. 10 seconds – then switch off. Repeat the procedure for a couple of times.

  • Switch off the appliance and fit the nozzle again.

Operation

Danger
Risk of explosion!
Do not spray flammable liquids.
If the appliance is used in hazardous areas (e.g. filling stations) the corresponding safety provisions must be observed.
Warning
Clean engines only at places with corresponding oil separators (environmental safety).
The jet must not be directed at other persons or directed by the user at him/herself to clean clothing or footwear.
Risk of blocking. Place the nozzles in the accessory compartment with their joint pointing upward.
Danger
Long hours of using the appliance can cause circulation problems in the hands- on account of vibrations.
It is not possible to specify a generally valid operation time since this depends on several factors:

  • Proneness to blood circulation deficiencies (cold, numb fingers).
  • Low ambient temperature. Wear warm gloves to protect your hands.
  • A firm grip impedes blood circulation.
  • Continuous operation is worse than an operation interrupted by pauses.

In case of regular, long-term operation of the device and in case of repeated occurrence of the symptoms (e.g. cold, numb fingers) please consult a physician.

High-pressure operation
Note
The appliance is equipped with a pressure switch. The motor starts up only when the lever of the pistol is pulled.

  • Roll off the high-pressure hose totally from the hose drum.
  • Set the appliance switch to “I”.
  • Unlock the hand-spray gun and pull the lever of the gun.
  • Set working pressure and flow rate through turning (rungless) at the pressure- and amount regulation (B) (+/-).

Select spray type

  • Close the hand spray gun.
  • Turn the casing of the nozzle till the desired symbol matches the marking.

| High-pressure circular spray (0°) for specially stubborn dirt
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| Flat low-pressure spray (CHEM) for operating using detergents or cleaning at low pressure.
| High-pressure flat spray (25°) for large dirt areas

Operation with detergent

Warning
Unsuitable detergents can cause damage to the appliance and to the object to be cleaned. Use only those detergents that have been approved by Kärcher. Observe the dosage and other instructions provided with these detergents. For considerate treatment of the environment use detergent economically.
Follow the safety instructions for using detergents.
Kärcher detergents ensure smooth functioning. Please consult us or ask for our catalog or our detergent information sheets.

  • Place the detergent bottle into the bottle holder on the appliance or place a detergent container next to the appliance.. Two different detergents can be simultaneously placed into the appliance.
  • Pull the detergent suction hose out and immerse it into the detergent bottle or container.
  • Screw the lid onto the bottle or the container.
  • Set nozzle to “CHEM”.
  • Set the detergent dosing valve to the desired detergent and concentration.

Recommended cleaning method

  • Spray the detergent sparingly on the dry surface and allow it to react, but not to dry.
  • Spray off loosened dirt with the high-pressure ray.
  • After operations, dip the filter in clear water. Turn the dosing valve to the highest detergent concentration. Start the appliance and rinse for one minute.

Interrupting operation

  • Release the lever of the hand-spray gun; the device will switch off.
  • Release again the lever of the hand spray gun; the device will switch on again.

Turn off the appliance

  • Set the appliance switch to “0”.
  • Disconnect the mains plug from the socket.
  • Shut off the water supply.
  • Activate the hand spray gun until the device is pressure-less.
  • Press the safety lever of the hand-spray gun to secure the lever of the pistol against being released accidentally.

Storing the Appliance

  • Insert the hand-spray gun in the holder.
  • Wind up the high-pressure hose and hang it over the hose storage. or Wind up the high-pressure hose on the hose drum. Push in the handle of the crank to block the hose drum.
  • Wind the connection cable around the cable holder.
  • Fasten the plug with the mounting clip.

Frost protection
Caution
Frost will destroy the not completely water drained device.
Store the appliance in a frost-free area.

If you cannot store it in a frost-free place:

  • Drain water.
  • Pump in conventional frost protection agents through the appliance.

Note
Use normal glycol-based anti-freezing agents for automobiles.
Observe the handling instructions of the antifreeze agent manufacturer.

  • Operate device for max. 1 minute until the pump and conduits are empty.

Transport

Caution
Risk of injury and damage! Observe the weight of the appliance when you transport it.

  • Pull the device behind you at the handle for transporting it over longer distances.
  • For devices without hose drums, push the handle downward to carry the appliance. To carry, hold the appliance at the handles and not at the pushing handle.
  • Prior to transporting the appliance in a horizontal position, remove the detergent bottles from the bottle holder and close them.
  • When transporting in vehicles, secure the appliance according to the guidelines from slipping and tipping over.

Storage

Caution
Risk of injury and damage! Note the weight of the appliance in case of storage.
This appliance must only be stored in interior rooms.

Maintenance and care

Danger
Risk of injury by the inadvertent startup of the appliance and electrical shock.
First, pull out the plug from the mains before carrying out any tasks on the machine.

Note
Please dispose of used oil only at the collection points provided for them. Please hand over old oil, if any, only at such places. Polluting the environment with used oil is a  punishable offense.

Safety inspection/ maintenance contract
You can sign with your dealer a contract for a regular safety inspection or even sign a maintenance contract. Please take advice on this matter.

Before each use

  • Check connection cable for damages (risk of electrical shock); get the damaged connection cable replaced immediately by an authorized customer service person/ electrician.

  • Check the high-pressure hose for damages (risk of bursting).
    Please arrange for the immediate exchange of a damaged high-pressure hose.

  • Check appliance (pump) for leaks. 3 drops per minute are permitted and can come out from the lower side of the appliance. Call Customer Service if there is heavy leakage.

Weekly

  • Check oil level Please contact Customer Service immediately if the oil is milky (water in oil).
  • Clean the sieve in the water connection.
  • Clean filter at the detergent suck hose.

monthly or after 500 operating hours

  • Oil change.

Oil change
Note
See “Technical Details” for details of oil quantity and type.

  • Unscrew the fastening screws of the device hood; remove the device hood.
  • Remove the lid of the oil container.
  • Tilt the appliance forward.
  • Drain the oil in a collection basin.
  • Fill in new oil slowly; air bubbles should go out.
  • Attach the lid of the oil container.
  • Fasten the device hood.

Troubleshooting

Danger
Risk of injury by the inadvertent startup of the appliance and electrical shock.
First, pull out the plug from the mains before carrying out any tasks on the machine. Get the electrical components checked and repaired only by authorized customer service persons.
Contact an authorized customer service person in case of problems not mentioned in this chapter or if you are in doubt or when you have been explicitly asked to do so.

The appliance is not running

  • Check connection cable for damages.

  • Check the supply voltage.

  • Turn the device switch on “0” and let the engine cool off for at least 5 minutes.
    If malfunction still occurs, have the device checked by customer service.

  • Call Customer Service in case of electrical defects.

Pressure does not build up in the appliance

  • Set nozzle to “High pressure”.
  • Clean the nozzle.
  • Replace the nozzle.
  • Deaerate the appliance (see “Start-up”)
  • Check water supply level (refer to technical data).
  • Clean the sieve in the water connection.
  • Check all inlet pipes to the pump.
  • Contact Customer Service if needed.

Pump leaky

3 drops per minute are permitted and can come out from the lower side of the apple-ance. Call Customer Service if there is heavy leakage.

  • With a stronger leak, have the device checked by customer service?

Pump is vibrating

  • Check suction pipes for water and detergent and ensure that they are leakproof.
  • Close the dosing valve for the detergent to operate the machine without detergent.
  • Deaerate the appliance (see “Start-up”)
  • Contact Customer Service if needed.

Detergent is not getting sucked in

  • Set nozzle to “CHEM”.
  • Check/ clean detergent suction hose with filter.
  • Open or check/clean detergent dosing valve.
  • Contact Customer Service if needed.

Spare parts

  • Only use accessories and spare parts which have been approved by the manufacturer. The exclusive use of original accessories and original spare parts ensures that the appliance can be operated safely and trouble-free.
  • At the end of the operating instructions, you will find a selected list of spare parts that are often required.
  • For additional information about spare parts, please go to the Service section at www.kaercher.com.

Warranty

The warranty terms published by the relevant sales company are applicable in each country. We will repair potential failures of your appliance within the warranty period free of charge, provided that such failure is caused by faulty material or defects in manufacturing. In the event of a warranty claim please contact your dealer or the nearest authorized Customer Service center.
Please submit the proof of purchase.

EC Declaration of Conformity

We hereby declare that the machine described below complies with the relevant basic safety and health requirements of the EU Directives, both in its basic design and construction as well as in the version put into circulation by us. This declaration shall cease to be valid if the machine is modified without our prior approval.

Product: High-pressure cleaner
Type: 1.524-xxx
Relevant EU Directives
2006/42/EC (+2009/127/EC)
2004/108/EC
2000/14/EC
Applied harmonized standards
EN 60335–1
EN 60335–2–79
EN 55014–1: 2006 + A1: 2009
EN 55014–2: 1997 + A2: 2008
EN 61000–3–2: 2006 + A2: 2009
HD 6/16: EN 61000–3–11: 2000
Applied conformity evaluation method
2000/14/EC: Appendix V
Sound power level dB(A)
Measured: 83
Guaranteed: 84
The undersigned act on behalf and under the power of attorney of the company management.

Authorised Documentation Representative S. Reiser
Alfred Kärcher GmbH Co. KG
Alfred-Kärcher-Str. 28 – 40
71364 Winnenden (Germany)
Phone: +49 7195 14-0
Fax: +49 7195 14-2212
Winnenden, 2012/06/01

Technical specifications

Type| HD 7/11-4 M
1.524-114.0
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GB
Main Supply
Voltage| V| 230…240
Current type| Hz| 1— 50
Motor rpm| 1/min| 1400
Connected load| kW| 3,0
Protection (slow, char. C)| A| 13
Type of protection| | IPX5
Maximum allowed net impedance| Ohm| 0.294+j0.184
Extension cord 30 m| mm2| 2,5
Water connection
Max. feed temperature| °C| 60
Min. feed volume| I/h (I/min)| 700 (11,7)
Suck height from an open container (20 °C)| m| 0,5
Max. feed pressure| MPa| 1
Performance data
Working pressure| MPa| 3…11
Nozzle size| | 53
Max. operating over-pressure| MPa| 14
Flow rate| I/h (I/min)| 300…700 (5…11,7)
Detergent suck in| I/h (I/min)| 0…40 (0…0,7)
Max. recoil force of hand spray gun| N| 30
Values determined as per EN 60355-2-79
Hand-arm vibration value
Hand spray gun| m/s2| 1,5
Spray lance| m/s2| 2,6
Uncertainty K| m/s2| 0,3
Sound pressure level LpA| dB(A)| 69
Uncertainty K.,,| dB(A)| 3
Sound power level LWA + Uncertainty KWA| dB(A)| 86
Fuel
Amount of oil| I| 0,5
Oil grade| | SAE OW40
Dimensions and weights
Length| mm| 554
Width| mm| 509
Height| mm| 1000
Weight (without accessories)| kg| 47,5

KARCHER HD 7 11 4 M Cold Water High Pressure Cleaner -
1

Kärcher (U.K.) Ltd., Kärcher House, Beaumont Road, Banbury, Oxon OX16 1TB,
+44-1295-752-000, www.karcher.co.uk

UA Kärcher Ltd., Petropavlivska Str., 4, Petropavlivska Bor-
Cagiva, Kyiv region, 08130,
+380 44 594 7576, www.karcher.com.ua
The USA To locate your local dealer please visit our website at http://www.karchercommercial.com or call us at 888.805.9852

References

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